Method dialogPushState

SIP/SIPDialog.cpp:457–500

}

void SipDialog::dialogPushState(
	SipState newSipState,				// The new sip state.
	int code,						// The SIP message code that caused the state change, or 0 for ACK or total failures.
	char timer)
{
	SipState oldSipState = getSipState();
	DialogState::msgState oldDialogState = getDialogState();
	setSipState(newSipState);

	// If it is a new state, inform L3.
	DialogState::msgState nextDialogState = getDialogState();	// based on the newSipState we just set.
	LOG(DEBUG) <<LOGVAR(oldSipState)<<LOGVAR(newSipState)<<LOGVAR(getSipState())<<LOGVAR(mPrevDialogState)<<LOGVAR(oldDialogState)<<LOGVAR(nextDialogState)<<dialogText();
	if (nextDialogState == DialogState::dialogStarted) {
		// This state is used for MO transactions just to indicate the dialog is active,
		// but the MO state machine already knows that since it created the dialog,
		// so we dont return this state as a notification.
		return;
	}
	if (permittedTransition(mPrevDialogState,nextDialogState)) {
		DialogMessage *dmsg = new DialogMessage(mTranId,nextDialogState,code);
		dialogQueueMessage(dmsg);
	} else {
		LOG(DEBUG) << "no dialog state change";
	}
	mPrevDialogState = nextDialogState;

	// A timer may be specified if the SIP state is one indicating failure.
	// The timer letter corresponds to one of those specified in RFC3261, and specifies the dialog
	// should not be destroyed until the timer expires.
	switch (timer) {
		case 0:
			break;	// default, no timer specified.
		case 'D':
			// RFC3261 17.1.1.2 says set Timer D to 32s instead of 64*T1.  Whatever.
			if (dsPeer()->ipIsReliableTransport()) {
				mTimerD.setOnce(32000);
			}
			break;
		case 'K':
			mTimerK.setOnce(T4);
			break;
		default: assert(0);
	}
}


void SipDialog::dialogChangeState(